In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC MS and Poly - Plantronics Backbeat FIT 505. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat FIT 505 |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 6.726 cm | |
| Width | - | 14.877 cm | |
| Depth | - | 17.155 cm | |
| Weight | 227 g | 155 g | Poly - Plantronics Backbeat FIT 505 are lighter than EPOS I SENNHEISER IMPACT MB 660 UC MS headphones. |
| Colour | - | Black | |
| Earpad Material | - | Memory foam | |
| Headband Material | - | Memory foam | |
| Protection | - | Moisture-resistant, sweat-resistant | |
| Recommended Use | Portable electronics, computer | Portable electronics | |
| Bluetooth Range (Operating Distance) | 25 m | 10 m | EPOS I SENNHEISER IMPACT MB 660 UC MS have a greater operating distance than Poly - Plantronics Backbeat FIT 505. |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat FIT 505 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC MS can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 4.1 | EPOS I SENNHEISER IMPACT MB 660 UC MS have a more advanced version of Bluetooth than Poly - Plantronics Backbeat FIT 505. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Active Noise Cancelling | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC MS are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Adaptive Noise Control | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 17 - 23000 Hz | 50 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC MS offer a larger frequency range than Poly - Plantronics Backbeat FIT 505. |
| Total Harmonic Distortion (THD) | 0.5% | <3% | EPOS I SENNHEISER IMPACT MB 660 UC MS have lower total harmonic distortion than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| Sensitivity | 118 dB | - | |
| Impedance | 46 Ohm | 32 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat FIT 505 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Frequency Response | 150 - 6800 Hz | - |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat FIT 505 |
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| Controls | - | Answer/end, play/pause, next/previous track |
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| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat FIT 505 |
|---|
| Cable Type | Audio cable Micro-USB cable |
Micro-USB charge cable Audio cable |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat FIT 505 |
|---|
| Battery Type | Headset battery rechargeable | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | 30 hours | 18 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC MS lasts longer on a single charge than the Poly - Plantronics Backbeat FIT 505. |
| Standby Time | 360 hours | 480 hours | Poly - Plantronics Backbeat FIT 505 have longer standby time than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| Charging Time | 3 hours | 1.5 hour(s) | Poly - Plantronics Backbeat FIT 505 recharge faster than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat FIT 505 |
|---|
| Transmission Range | 25 m | 10 m | EPOS I SENNHEISER IMPACT MB 660 UC MS have greater transmission range than Poly - Plantronics Backbeat FIT 505. |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC MS | Poly - Plantronics Backbeat FIT 505 |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | - | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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